CN101329106A - Technique and process for preparing sanitary hot water by air conditioner condensation heat and auxiliary heat source - Google Patents

Technique and process for preparing sanitary hot water by air conditioner condensation heat and auxiliary heat source Download PDF

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Publication number
CN101329106A
CN101329106A CNA2007100167508A CN200710016750A CN101329106A CN 101329106 A CN101329106 A CN 101329106A CN A2007100167508 A CNA2007100167508 A CN A2007100167508A CN 200710016750 A CN200710016750 A CN 200710016750A CN 101329106 A CN101329106 A CN 101329106A
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China
Prior art keywords
hot water
air conditioner
condensation heat
technology
cooling water
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Pending
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CNA2007100167508A
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Chinese (zh)
Inventor
田贯三
丁国玉
高鲁锋
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Shandong Jianzhu University
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Shandong Jianzhu University
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Priority to CNA2007100167508A priority Critical patent/CN101329106A/en
Publication of CN101329106A publication Critical patent/CN101329106A/en
Pending legal-status Critical Current

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Abstract

A technique and process makes use of the condensation heat and assistant heat supply of an air conditioner to prepare clean hot water. An assistant heating and heat-storing water-tank system is connected in parallel with a condenser of an air conditioner unit, and the system comprises an assistant heat supply and a heat-storing water-tank, etc. which are connected in parallel with an automatic control system formed by a cooling water temperature control system, a cooling water filling control system and a hot water temperature control system which are connected in parallel. The cooling water temperature control system comprises a temperature sensor, a temperature controller and an electronic three-way valve which are connected in parallel; the cooling water filling control system comprises a flow sensor, a flow controller and a filling electronic valve which are connected in parallel; the hot water temperature control system comprises a temperature sensor, a temperature controller and a solenoid valve which are connected in parallel. The invention can enhance the running efficiency of the air conditioner unit, strengthen the stability of the air conditioner unit and realize the partial or full recycling of the condensation heat of the air conditioner unit and the matching between the recycling of the condensation heat and the hot water load.

Description

Utilize air conditioner condensation heat and auxiliary thermal source to prepare the technology and the technology of health hot water
Affiliated technical field
The present invention relates to a kind of technology and technology of utilizing air conditioner condensation heat and auxiliary thermal source to prepare health hot water, belong to field of energy-saving technology; The condensation heat of central air conditioner system that is primarily aimed at large-scale hotel, hospital etc. and has the public building of health hot water demand reclaims and utilizes, and is used to prepare health hot water.
Background technology
At present, the condensation heat recovery technology of air-conditioning unit mainly contains two kinds: a kind of employing heat recovering heat exchanger of connecting between compressor and condenser, running water enters the sensible heat that heat recovering heat exchanger absorbs compressor outlet high temperature refrigerant vapor, enter auxiliary thermal source then or prepare health hot water, realize the partially recycled of condensation heat as the low-temperature heat source of source pump; Cooling tower is save in a kind of employing, prepares health hot water with whole cooling waters of air conditioner refrigerating unit as the low-temperature heat source of source pump, realizes whole recovery of condensation heat.In actual engineering, the former causes the complex structure of compressor because the heat recovering heat exchanger of connecting between compressor and condenser, and the drag losses of cryogen pipeline increases, and has a strong impact on the stability and the operational efficiency of air-conditioning unit operation.The latter is difficult to realize the yield of condensation heat and hot water load's coupling, and owing to save cooling tower, can not guarantee the operational efficiency and the stability of air-conditioning system.Because the limitation of above two kinds of air-conditioning unit condensation heat recovery technologies is so it is difficult to large-scale promotion and application in actual engineering.The condensation heat of most air-conditioning units is carried out heat exchange by cooling tower and environment and is lost in the environment, causes the waste of the energy and the pollution of environment.
Summary of the invention
The existing caused air-conditioning unit of condensation heat recovery technology operational efficiency is low in order to overcome, the yield of poor stability and condensation heat and hot water load's problem such as do not match, the present invention proposes a kind of technology and technology of utilizing air conditioner condensation heat and auxiliary thermal source to prepare health hot water, improved the air-conditioning unit operational efficiency, strengthened the stability of air-conditioning unit; Realized the part or all of recovery of air-conditioning unit condensation heat and condensation heat yield coupling with the hot water load.
The technical solution adopted for the present invention to solve the technical problems is: in the in parallel one auxiliary heating and hot water storage tank system of the condenser place of air-conditioning unit.This system is composed in parallel with automatic control system by auxiliary thermal source, hot water storage tank etc.Automatic control system is by the cooling water temperature control system, the cooling water replenishment control system, and hot water temperature's control system composes in parallel.The cooling water temperature control system is composed in series by temperature sensor, temperature controller and electric T-shaped valve; The cooling water replenishment control system is composed in series by flow sensor, flow controller and moisturizing motor-driven valve; Hot water temperature's control system is composed in series by temperature sensor, temperature controller and magnetic valve.The control strategy of cooling water temperature control system: when cooling water temperature during greater than 45 ℃, temperature sensor control temperature controller makes the electric three passes valve events, and the cooling water of air-conditioning system directly enters hot water storage tank, uses for the user; When cooling water temperature during less than 45 ℃ temperature sensor control temperature controller make the electric three passes valve events, the cooling water of air-conditioning system directly enters auxiliary thermal source, reaches about 50 ℃ after heating, enters hot water storage tank then, uses for the user.The control strategy of cooling water replenishment control system: the flow sensor control flow controller of locating by the cooling water inlet that is installed in auxiliary heating and hot water storage tank system makes the action of moisturizing motor-driven valve, adjust the aperture of moisturizing motor-driven valve, regulate the rate of water make-up of cooling water.The control strategy of hot water temperature's control system: make the magnetic valve action by the temperature sensor control temperature controller that is installed in the hot water storage tank place, when the water temperature at feed pipe place is lower than 40 ℃, magnetic valve is opened, water circulating pump starts, hot water is squeezed into auxiliary thermal source heat again, to satisfy user's requirement.In summer, the cooling water of air-conditioning unit (being generally about 40 ℃) is divided into two-way.One the tunnel enters auxiliary heating and hot water storage tank system, the preparation health hot water; Another road enters cooling tower, recycles after cooling.Winter and excessive season add hot tap-water by auxiliary thermal source, the preparation health hot water.Thereby reach the operational efficiency that has improved the air-conditioning unit, the stability that has strengthened the air-conditioning unit, the part or all of recovery of realization air-conditioning unit condensation heat and condensation heat yield are with hot water load's coupling.
The invention has the beneficial effects as follows that energy-saving and environmental protection have realized the cascade utilization of energy, and reduce cooling tower cooling water evaporation amount; The heat recovery efficiency height can adopt the auxiliary thermal source heating when used heat is not enough, guarantee the supply of health hot water, has realized the part or all of recovery of air-conditioning unit condensation heat; Security of operation, stable, the automatic controlling level height; Technology is simple, be easy to realize, need not to change the internal structure of air-conditioning unit; Auxiliary thermal source can adopt forms such as combustion gas, oil burning boiler or electric heater, and implementation is versatile and flexible; Energy-saving effect is remarkable, generally can energy-conservation 30%-60%, and summer average energy-conservation 50%.In actual engineering, the present invention has wide promotion and application prospect.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1: utilize air conditioner condensation heat and auxiliary thermal source to prepare the schematic diagram of the technology and the technology of health hot water
Fig. 2: in summer, utilize air conditioner condensation heat and auxiliary thermal source to prepare the operation logic figure of the technology and the technology of health hot water
Fig. 3: utilize air conditioner condensation heat and auxiliary thermal source to prepare the operation logic figure of the technology and the technology of health hot water in winter, transition season
Among Fig. 1,1. come from the chilled water of air-conditioning unit, 2. condenser, 3. cooling water pump, 4. moisturizing motor-driven valve, 5. cooling tower, 6. temperature sensor, 7. temperature controller, 8. flow sensor, 9. flow controller, 10. electric T-shaped valve, 11. water compensating valves, 12. auxiliary thermal source, 13. check-valves, 14. hot water storage tanks, 15. the water circulating pump of hot water supply system, 16. users, 17. temperature sensors, 18. temperature controller, 19. magnetic valves, 20. water circulating pumps.
Among the figure " " the expression summer operation, " " represent to move in winter, transition season.
The specific embodiment
In Fig. 1, temperature sensor (6), temperature controller (7) and electric T-shaped valve (10) series connection constitute the cooling water temperature control system; Flow sensor (8), flow controller (9) and moisturizing motor-driven valve (4) series connection constitute the cooling water replenishment control system; Temperature sensor (17), temperature controller (18), magnetic valve (19) and water circulating pump (20) series connection constitute hot water temperature's control system.Adjusting by above control system realizes the part or all of recovery of the enhancing of stability of raising, air-conditioning unit of the operational efficiency of air-conditioning unit and air-conditioning unit condensation heat and the condensation heat yield coupling with the hot water load.
Fig. 2, in summer, the cooling water of air conditioner refrigerating unit (being generally about 37 ℃) is divided into two branch roads: the one tunnel enters auxiliary heating and hot water storage tank system, the preparation health hot water.Its specific implementation is: when cooling water temperature during less than 45 ℃, directly enter auxiliary thermal source (12), reach about 50 ℃ after heating, enter hot water storage tank (14) then, use for user (16); When cooling water temperature during greater than 45 ℃, directly enter hot water storage tank (14), use for user (16); Another road enters cooling tower (5) and is cooled to about 32 ℃, finishes the cooling water circulation after cooling water pump (3) enters condenser (2).
Fig. 3, in transition season and winter, the air-conditioning unit is out of service, and open water compensating valve (11) this moment, and running water enters auxiliary thermal source (12), reaches about 50 ℃ after heating, enters hot water storage tank (14) and uses for user (16).
The embodiment of control strategy
1. at cooling water inlet place mounting temperature sensor (6), temperature controller (7) and the electric T-shaped valve (10) of auxiliary heating with the hot water storage tank system.Make electric T-shaped valve (10) action by temperature sensor (6) control temperature controller (7): when cooling water temperature during greater than 45 ℃, the cooling water of air-conditioning system directly enters hot water storage tank (14) and uses for user (16); When cooling water temperature during less than 45 ℃, the cooling water of air-conditioning system directly enters auxiliary thermal source (12), reaches about 50 ℃ after heating, enters hot water storage tank (14) then, uses for user (16).
2. moisturizing motor-driven valve (4) is installed on the cooling water circulation line, with the place, cooling water inlet of hot water storage tank system flow sensor (8) and flow controller (9) is installed in auxiliary heating.Make moisturizing motor-driven valve (4) action by flow sensor (8) control flow controller (9): the cooling water inflow that enter auxiliary heating and hot water storage tank system measured according to flow sensor (8), adjust the aperture of moisturizing motor-driven valve (4), thereby regulate the rate of water make-up of cooling water, realize the stable operation of unit.
3. locate to be provided with temperature sensor (17), temperature controller (18), magnetic valve (19) and water circulating pump (20) at hot water storage tank (14).Make the unlatching of magnetic valve (19) action and water circulating pump (20) by temperature sensor (17) control temperature controller (18): when the water temperature at feed pipe place is lower than 40 ℃, magnetic valve (19) is opened, water circulating pump (20) starts, hot water is squeezed into auxiliary thermal source (12) heat again, to satisfy the requirement of user (16).

Claims (4)

1. technology and technology of utilizing air conditioner condensation heat and auxiliary thermal source to prepare health hot water, the in parallel one auxiliary heating and hot water storage tank system at the condenser place of air-conditioning unit is characterized in that this device is made up of with automatic control system auxiliary thermal source, hot water storage tank etc.
2. technology and the technology of utilizing air conditioner condensation heat and auxiliary thermal source to prepare health hot water according to claim 1, it is characterized in that: temperature sensor, temperature controller, magnetic valve and water circulating pump are set at the hot water storage tank place, control the unlatching that temperature controller makes magnetic valve action and water circulating pump by temperature sensor, thus the temperature of regulating health hot water.
3. technology and the technology of utilizing air conditioner condensation heat and auxiliary thermal source to prepare health hot water according to claim 1, it is characterized in that: the moisturizing motor-driven valve is installed on the cooling water circulation line, with the place, cooling water inlet of hot water storage tank system flow sensor and flow controller are installed in auxiliary heating, make the action of moisturizing motor-driven valve by flow sensor control flow controller, thereby regulate the rate of water make-up of cooling water, realize the stable operation of unit.
4. technology and the technology of utilizing air conditioner condensation heat and auxiliary thermal source to prepare health hot water according to claim 1, it is characterized in that: at cooling water inlet place mounting temperature sensor, temperature controller and the electric T-shaped valve of auxiliary heating with the hot water storage tank system, make the electric three passes valve events by temperature sensor control temperature controller, thereby the part or all of recovery of realization air-conditioning unit condensation heat and condensation heat yield are with hot water load's coupling.
CNA2007100167508A 2007-08-03 2007-08-03 Technique and process for preparing sanitary hot water by air conditioner condensation heat and auxiliary heat source Pending CN101329106A (en)

Priority Applications (1)

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CNA2007100167508A CN101329106A (en) 2007-08-03 2007-08-03 Technique and process for preparing sanitary hot water by air conditioner condensation heat and auxiliary heat source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007100167508A CN101329106A (en) 2007-08-03 2007-08-03 Technique and process for preparing sanitary hot water by air conditioner condensation heat and auxiliary heat source

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106766337A (en) * 2017-01-23 2017-05-31 苏州苏净安发空调有限公司 A kind of circulated air air-conditioning heat pump energy conserving system
CN107366951A (en) * 2017-08-18 2017-11-21 南京长江都市建筑设计股份有限公司 A kind of air conditioner cold water unit reclaiming system for condensation heat
CN108759172A (en) * 2018-04-09 2018-11-06 中原工学院 A kind of heat storage heat pump system and its operation method based on cooling water heat recycling
CN109883056A (en) * 2019-01-09 2019-06-14 青岛海尔空调器有限总公司 A kind of control method of energy resource system
CN113503638A (en) * 2021-06-18 2021-10-15 南京以禾电子科技有限公司 Self-adaptive fuel oil heater for high plain

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106766337A (en) * 2017-01-23 2017-05-31 苏州苏净安发空调有限公司 A kind of circulated air air-conditioning heat pump energy conserving system
CN107366951A (en) * 2017-08-18 2017-11-21 南京长江都市建筑设计股份有限公司 A kind of air conditioner cold water unit reclaiming system for condensation heat
CN108759172A (en) * 2018-04-09 2018-11-06 中原工学院 A kind of heat storage heat pump system and its operation method based on cooling water heat recycling
CN109883056A (en) * 2019-01-09 2019-06-14 青岛海尔空调器有限总公司 A kind of control method of energy resource system
CN109883056B (en) * 2019-01-09 2021-06-25 青岛海尔空调器有限总公司 Control method of energy system
CN113503638A (en) * 2021-06-18 2021-10-15 南京以禾电子科技有限公司 Self-adaptive fuel oil heater for high plain

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Open date: 20081224